Question

The selling price, s, of an item is s = c + mc, where c is the cost of the item and m is the percent markup based on cost. What is the formula solved for m?

Answer 1

For the answer to the question above on what is the formula solved for
m
s = c ( 1 + m)

1 +m = s / c

So, the answer to your problem is
m = s / c - 1 = (s - c) / c
I hope my answer helped you. Have a nice day!

Answer 2

Answer: The percent markup based on cost
`m=(s-c)/(c)`, where s is the selling price and c is the cost of the item.

Explanation:

Given: The selling price, s, of an item is
`s=c+mc`, where c is the cost of the item and m is the percent markup based on cost.

To, solve the formula for m, first subtract 'c' from both the sides, we get

`s-c=mc`

Now, divide 'c' on both the sides, we get

`(s-c)/(c)=m`

Hence, the value of m (the percent markup based on cost)=
`(s-c)/(c)`, where s is the selling price and c is the cost of the item.